"Instruction Book and Catalog (No. 21) Covering the Printing Presses, Type and Supplies Manufactured and Sold by the Sigwalt Mfg. Co." (On cover: "Printing Presses, Type and Supplies and How to Use Them") Chicago: Sigwalt Mfg. Co., [no date, but clearly 1930s or earlier]. It covers the "Chicago" and "Ideal" tabletop printing presses.
Thanks are due to Jenny Addison, Proprietor of the Lock and Key Press, for making this material available.
RightsThis book was published in the United States without copyright notice at a time when such notice was required to secure copyright. It therefore passed into the public domain upon initial publication. No additional rights are asserted for this digital reprint. It is in the public domain.